<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
        queryObj: {
          // 查询关键词
          query: '',
          // 商品分类Id
          cid: '',
          // 页码值
          pagenum: 1,
          // 每页显示多少条数据
          pagesize: 10
        },
        goodsList: [],
        total: 0,
        // 节流阀
        isloading: false
      };
    },
    onLoad(options) {
      // console.log(options)
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      
      this.getGoodsList()
    },
    methods: {
      async getGoodsList(cb) {
        // 打开节流阀
        this.isloading = true
       const {data:res} = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
       // 关闭节流阀
       this.isloading = false
       // 存在就调用,关闭刷新
       cb && cb()
       if(res.meta.status !== 200) return uni.$showMsg()
       this.goodsList = [...this.goodsList, ...res.message.goods]
       this.total = res.message.total
      },
      gotoDetail(goods) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
        })
      }
    },
    onReachBottom() {
      if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕')
      if(this.isloading) return
      // 页码值自增
      this.queryObj.pagenum ++
      this.getGoodsList()
    },
  onPullDownRefresh() {
    this.queryObj.pagenum = 1
    this.total = 0
    this.isloading = false
    this.goodsList = []
    
    // 重新发起数据请求
    this.getGoodsList(() => uni.stopPullDownRefresh())
  }
  }
</script>

<style lang="scss">

</style>
